Guide To The Action Bands - Radio Shack PRO-71 Owner's Manual

Birdie Frequencies
Every scanner has birdie frequencies. Birdies are signals created in-
side the scanner's receiver. These operating frequencies might inter-
fere with broadcasts on the same frequencies. If you program one of
these frequencies, you hear only noise on that frequency. If the inter-
ference is not severe, you might be able to turn
cut out the birdie.
The birdie frequency on this unit to watch for is 146.65 MHz.
To find the birdies on your receiver, begin by disconnecting the anten-
na and moving it away from the receiver. Make sure that no other near-
by radio or TV sets are turned on near the receiver. Use the search
function and scan every frequency range from its lowest frequency to
the highest. Occasionally, the searching will stop as if it had found a
signal, often without any sound. That is a birdie. Make a list of all the
birdies in your scanner for future reference.

GUIDE TO THE ACTION BANDS

Typical Band Usage
HF Band (3.00–30.0 MHz)
10-Meter Amateur
High Range
VHF Band (30.00–300.0 MHz)
Low Range
6-Meter Amateur
Aircraft
U.S. Government
2-Meter Amateur
High Range
UHF Band (300.00 MHz–3.0 GHz)
U. S. Government
0.6-Meter Amateur
Low Range
FM-TV Audio Broadcast, Wide Band
SQUELCH
29.00–29.70 MHz
29.70–29.90 MHz
30.00–50.00 MHz
50.00–54.00 MHz
108.00–136.97 MHz
137.00–144.00 MHz
144.00–148.00 MHz
148.00–174.00 MHz
406.00–450.00 MHz
420.00–450.00 MHz
450.00–470.00 MHz
470.00–512.00 MHz
clockwise to
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